{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["manufacturing standard", "process characterization", "application", "engineering feature", "material", "enabling technology"], "input": "In order to achieve a polytropic expansion through a reciprocating machine , an extremely compact heat exchanger is designed ."}
{"manufacturing standard": [], "process characterization": [], "application": [], "engineering feature": ["designed"], "material": [], "enabling technology": []}